Acceptability and Feasibility of a Brief Paranoia Intervention.

This study is testing a brief psychological therapy for teenagers who experience paranoia — excessive or distressing mistrust of others — and are seeking help from a child and adolescent mental health service. Researchers want to know whether young people find the therapy acceptable and whether it is practical to deliver. **You may be eligible if...** - You are 16–18 years old - You are currently accessing a Child and Adolescent Mental Health Service (CAMHS) - You score 11 or above on a scale measuring paranoia (R-GPTS Scale B) - You have sufficient understanding of English - You are experiencing low to moderate mental health risks (not in immediate danger) - You want help with your paranoid thinking **You may NOT be eligible if...** - You have a severe co-occurring problem like substance dependence - You have a developmental disability or cognitive impairment that would make participation difficult - You are currently receiving another psychological therapy - You are at high and immediate risk of harm to yourself Talk to your doctor to see if this trial is right for you.